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TxTF <br /> <... J Sb�din T1t>a Influence Data. <br /> Fourteen] ...... <br /> {�lltk8'�Sd Murina Stockton <br /> Lowest Tide Highest 11de <br /> Monitoring Sounding TSme Of Time-Height 'time-Height <br /> Well Number Date Sounding in Feet in Feet <br /> MW-4 08/24/94 Unrecorded 02:04p-0.3 07:21p-3.3 <br /> . I 09/19/94 11:30p 12:04p-0.2 05:13p-3.5 <br /> >,! 10/25/94 01:30p 05:14a-0.4 08:05p-3.0 <br /> 11/28/94 10:22a 08:26p-0.3 02:39p-3.5 <br /> 12/15/94 11:19a 10:51p--0.1 02:37p-3.7 <br /> y 01/10/95 2:00p 08:12p-0.4 01:09a-3.8 <br /> MW-5 08/24/94 Unrecorded <br /> 09/19/94 12:00p <br /> 10/25/94 01:00P <br /> 11/28/94 10:35a <br /> 12/15/94 11:40a <br /> 01/10/95 1.30p <br /> r- MW-6 06/24/94 Unrecorded <br /> "". 08/24/94 12:30p <br /> 10/25/94 02:00P <br /> 11/28/94 10:48a <br /> 12/15/94 12:10p <br /> 01/10/95 2:30p <br /> -, <br /> 1994 Tidal Tables for the Central California Coast and 1995 Tidal Tables for the San Francisco Coast are based on <br /> National Ocean Survey Tables provided by the U.S.Department of Commerce;all published data have been corrected for <br /> 'l tidal influences at Stockton. <br /> N Ground-Water Sampling <br /> Prior to normal well-sampling procedures on September 19 and December 15, 1994, ground- <br /> '_ water sampling equipment was steam-cleaned and/or washed in Liquinox®prior to sampling and <br /> between sampling each well. Water-condition parameters of temperature, electrical conductivity, <br /> and pH were measured and logged during well-purging prior to sampling the wells. Purging <br /> ,. was continued until at least three well-volumes of water were removed from each well, and <br /> water condition parameters had stabilized. The Well Sampling and Monitoring Logs are <br /> included as Appendix A. <br /> Each ground-water sample was collected within a clean, disposable, polyethylene bailer lowered <br /> j 3 to just below the water surface. Each ground-water sample was brought to the surface and <br /> immediately transferred to two-to-six, 40-m1 capacity, glass, Volatile Organic Analysis (VOA) <br /> vials and fitted with Teflon'-lined screw caps. Care was taken to ensure that no air space <br /> existed in the vials by inverting, tapping, and checking for bubbles. Each container was <br /> properly labeled in the field and refrigerated for transport to Sherwood Labs in Hilmar for TPH- <br /> i g by EPA Method 503018015-mod; TRPH-d analysis by EPA Method 3510/8015-mod; and <br /> W.W. Irwin,Inc. <br /> Project No.33016.04 <br /> E -_ January 1995 7 <br />